Testing Knowledge
Test Directory
Source-backed test guides: what each test is for, how it is performed, its limitations, and which reviewed products serve it. Personal health questions are answered with knowledge and preparation guidance — not supplier sales.

DNMT3B mRNA Measurement
A determination of the amount of DNMT3B mRNA in a biological sample.
Factor XII Activity Measurement
The determination of the amount of factor XII activity present in a sample.
Effector Memory Helper T-Lymphocyte Subpopulation to Effector Memory Helper T-Lymphocyte Ratio Measurement
The determination of the ratio of T-lymphocytes helper effector memory sub-population to T-lymphocytes helper effector memory present in a sample. The measurement may be expressed as a ratio or percentage.
11-Hydroxyandrosterone Measurement
The determination of the amount of 11-hydroxyandrosterone present in a sample.
24(S)-Hydroxycholesterol Measurement
The determination of the amount of 24(S)-hydroxycholesterol present in a sample.
Plasmacytoid Dendritic Cell Subpopulation to Plasmacytoid Dendritic Cell Subpopulation Ratio Measurement
The determination of the ratio of a sub-population of plasmacytoid dendritic cells to a second sub-population of plasmacytoid dendritic cells (e.g., a child/parent based on two or more sub-population-defining markers) present in a sample. The measurement may be expressed as a ratio or percentage.
Wax Ester Sapienate Measurement
The determination of the amount of wax ester sapienate in a sample.
Microbial-induced IgG and/or IgM Antibody Measurement
The determination of the amount of microbial-induced IgG and/or IgM antibody in a sample.
Dietary Seafood High in n-3 Fatty Acids Measurement
A determination of the seafood high in n-3 fatty acids in a nutritional product or meal, or a portion thereof.
8-Iso-Prostaglandin F2 Alpha Measurement
The determination of the amount of 8-iso-prostaglandin F2 alpha in a biological specimen.
Gut-Homing Helper Mucosal-Associated Invariant T-Lymphocyte Subpopulation to Gut-Homing Helper Mucosal-Associated Invariant T-Lymphocyte Ratio Measurement
The determination of the ratio of a sub-population of gut-homing helper mucosal-associated invariant T-lymphocytes to total gut-homing helper mucosal-associated invariant T-lymphocytes present in a sample. The measurement may be expressed as a ratio or percentage.
Conventional Naive T-Lymphocyte Count
The determination of the number of conventional naive T-lymphocytes in a sample.
Norovirus Genogroup II.4 IgM Antibody Measurement
A measurement of Norovirus genogroup II.4 IgM antibody present in a sample.
Dengue Virus 1 RNA Measurement
The determination of the amount of dengue virus 1 RNA present in a sample.
Creatine Kinase MB to Total Creatine Kinase Ratio Measurement
The determination of the ratio of creatine kinase MB compared to total creatine kinase present in a sample. The measurement may be expressed as a ratio or percentage.
Chemistry Test
A laboratory test designed for the quantification of an organic or inorganic chemical within a biological specimen.
Free Complement C2 Measurement
The determination of the free complement C2 present in a sample.
Transitional B-Lymphocyte Subpopulation Count
The determination of a sub-population of transitional B-lymphocytes in a sample.
MMP 2-Degraded Type VI Collagen Fragment C6M Measurement
The determination of the amount of MMP2-degraded type VI collagen fragment C6M in a sample.
Varicella Zoster Virus IgA Antibody Measurement
The determination of the amount of varicella zoster virus IgA antibody present in a sample.
Trans-3-Hydroxycotinine Glucuronide Measurement
The determination of the amount of trans-3-hydroxycotinine glucuronide in a sample.
Unconventional Class-switched Memory B-Lymphocyte Subpopulation Count
The determination of a sub-population of unconventional class-switched memory B-lymphocytes in a sample.
Myeloid-Derived Suppressor Cell Count
The determination of the number of myeloid-derived suppressor cells in a sample.
Sexual Plasmodium knowlesi Measurement
The determination of the amount of the organism assigned to the Plasmodium knowlesi species in the sexual phase in a biological sample.
